species, aphids can inflict various types of damage to a crop: Nymphs and adults extract nutrients from the plant and disturb the balance of growth…
develop to the 2nd stage within a day. All life stages look very similar. The adults develop after about two or three days. They are cream to…
of leaf miner. The older larvae make wider tunnels. Feeding spots made by adult females can also reduce yield, although with the exception of…
long, and resemble those of other noctuid moths. After five or ten days the adult moth emerges from the pupa. Damage symptoms Older caterpillars…
the leaf and begin to secrete wax, moulting to a third instar and then the adult female without a complete metamorphosis. Damage symptoms Although…
to combat the eggs of the Duponchelia moth. Pheromone traps capture the adult moths. Lex Scheffers describes biological plant protection as a godsend.
soil-dwelling larval, pre-pupal and pupal stage. Larvae found on plants and adults are also susceptible to nematode infection, depending on the crop…
parasitic wasps also engage in host feeding. This behavior involves the adult wasps feeding on the host’s body fluids, which can be important for…
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